Pumping mechanism for oil-wells



O. M. PROVORSE AND R. C. SUTHEBLAND. PUMPING MECHANISM FOR OIL wms.

APPLICATION FILED MAY I, 192]. 1,401,440, Patented Dec. 27, 1921.

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1,401,440. "application filed gay 7,

Toallwhomitmayamem: Be it known that we, OSCAR M. Pnovons'n and Russian. C. SUTHEBLAND, citizens of the United States, residing at Wynona, in the county of Osage and State of Oklahoma,

have invented certain newand useful Imrovements in Pumpjn Mechanisms for il-Wells, of which the ollowing is a specification, reference being had to the accompan mg rawings. 1

This invention relates to oil wells, and particularly to thecasing of the oil well and the working barrel-thereof."

/ As practically all mineral, oil is found in 1| sand, some of the sand will be drawn into the working barrel of the well 'on every stroke of the pum more particularly when wells 1 are new. s many wells are very deep, there is a eat pressure on the cups of .0 the traveling va ve in order to lift the oil to.

sand as it is drawn upward by the travel-.

ing valvewill pass into the chamber where the sand may settle so that the packing'cups of the several valves or pistons will not be subjected to constant wear from the action of the sand.

' A further object is to provide a construe..- tion of this kind embodying a working bar- 0 the working barrel communicatin with the casing throughperforations, an the constructionbeing such that the oil is drawn upward through the standing valve and traveling valve, is forced. outward through these perforations into this relatively large chamber surrounding the working.barrel, the sand settling in the bottom of this chamber, while u on the reverse stroke of the sucker rods t 0 oil in this chamber is forced upward and into the well tubing and sooutward.

Other objects have to do with the details of construction and arrangement of parts as be will appear more fully hereafter.

"casing head of the well and 11 a' head or bushlng which at its upper end has screwsage of the head. The greatest diameter at rel disposed within a relatively large casing,

' s ine-su o: Lettertent Patented Dec. 27, 1921.

1e21, Serial Io. 467,150.

invention is illustrated in the accompanymg drawings, wherein F1gure 1 1s a verti l sectional view of i the work ng barrel of an oil well pump constructed in accordance with our mvention' FFigii 2 -1s a section on the line 2-2 of F igl. 3 is a section on the line 3-3 of 1 i fieferring to the drawings, '10 designates the tubing extendmgdownward from the threadeden ement with the tubin 10 and which is ann ar in cross section, t is head being formed with a socket 12 on its under face for the reception of the working bar rel and being exteriorly screw-threaded for engagement y a couphng 13. This head is formed with a plurality of ducts 14 arranged in two annular series and extending upward and inclined from the under face. o the head to the inner face thereof and dlscharging into the central aperture or pasthe lower end of the head 11 may be 5 3 f though, of course, other dimensions may be used, while the smallest diameter at the u per end of the head is .approximately 2 he recessed portion 12 is formed to provide a shoulder to rest upon the working barrel 15, which will be approximately 12' 1 in length and 2" in diameter and which is perforated at 16. Engaging the head. 11 by means of the couphn 13 is a length of 5 pipe, designated 1 concentric to the working barrel. and approximately 20 long. The lowerend ofthis' casing pipe 17 is exteriorly screwthreaded for engagement by a coupling 18195 and this coupling engages with an annular head 19 hav-inga central aperture and iengaged with a perforatedpipe section 20 by" means of a coupling 21 or in any other suitable manner. Oil enters throu h the perforated pipe section 20 and disc arges intoan oil pipe-21 whose lower end has threaded engagement'with thehead 19 and whose upper end is engaged with a collar 22, which in turn ion. 3 a seat for the lower end of the working barrel and for the standing valve .28, which may be of any usual or suitable construction and is formed with the usual steel ball and seat therefor. Operating within the working barrel 15 is .110

a sucker rod section 29 having screw threaded engagement with a 1%"; blind valve, designated 30, whose cups are reversed.

Connected with this blind valve 30 which 5 constitutes a piston is a sucker rod section 31, which in turn is connected tothe 1%" working or traveling valve 32 of the usual construction.

While we have given the preferable dimensions of the several pipes constitutlng the working valve and casing and the dimensions of the several valves, obviously these dimensions may be varied without in any way departing from the principle of the invention.

In the operation of this mechanism, it will be obvious that as the sucker rods are reciprocated in the usual manner that oil will be drawn upward through the perforations of the pipe section 20, through the standing valve and into the space above the standing I valve, and that upon the downward movement of the traveling valve this oil will be forced through the traveling valve and that as the pump rods reciprocate the oil will be forced 1nto the chamber formed between the head '11 and the head 19 and between the working barrel and the outer pi e 17 and that in this chamber the sand Wlll tend to settle and will gather at the bottom of the chamber, as indicated diagrammatically in the drawings, while the 011 will travel upward and be forced out through the ducts 14' into the space above the piston or blind valve 30 and in the reciprocation of the pump rods will be carried upward in the usual manner. Thus the sandwill not remain in the working barrel as it does today, but will be drawn out with the oil into the relatively large chamber surrounded by the wall 17 and will settle to the bottom of this chamber, while the oil without the sand will be carried upward. Thus the valves of the standing valve and the traveling valve will not be cut or worn by the sand and will last much longer than they would if this .sand. drawn up through the standing valve was not forced out into the settling chamber.

It will be noted that the oil passes upward through the lowermost head 19, upward through the standing valve, through the traveling valve, and that the sand and oil passes out through the perforation in the steel bar-' rel 15, into the relatively large chamber, and that the oil in this chamber is retarded in its upward travel owing to the relatively large size of this chamber and that as a consequence of this retardation, the rela-' tively heavy sand will settle to the bottom of the chamber where it lies unobstructed while .the oil passes on. upward in the usual manner. Should any sand find its way to the top of the barrel, it will be liable to work downward past the blind valve 30 .as the cupsjare reversed, and this sand will again 5 would be used with casing of 63-" be discharged out through the perforations 16 into the settling chamber where it would again have a chance to settle at the bottom.

Of course, the size of the working barrel may be changed without necessarily changing the size-of the pipe 17. Thus, for in stance, the working barrel might have a diameter'of 4" instead of a diameter of 2". It will be understood. of course, that the exterior barrel 17 if it has a diameter of P this being the ordinary size of the casing.

1. In an oil well, a working barrel having a standing valve in its length and perforated above the standing valve, a barrel exterior to theworking barrel and spaced therefrom, the space between the working barrel and the exterior barrel being closed at its lower end, a head closing this space at the upper end and havin ducts opening into the upper end of the wor ing barrel, a sucker rod, a travcling valve mounted on the lower end of the sucker rod, and a blind valve mounted upon the sucker rod above the standing valve, the blind valve and traveling valve being located normally below and above the perforations respectively.

2. In an oil well, a working barrel, :1. barrel exterior tothe working barrel and spaced therefrom to form a settling chamber, the settling chamber being closed at its lower end and opening into the working barrel at its upper end, the workin barrel having openings communicating with the Settlin chamber above the bottom of the latter, an means for alternately drawing oil upward into the working barrel and forcing it out through said openings and drawin the oil up through the upper end of the said cham- 10' her into-the upper portion of the working barrel.

3. In an oil well, a working barrel, a pipe section operatively connected thereto and extending below the workin barrel and hav- 110 ing an inlet at its lower en a standing valve disposed in the working barrel, an exterior barrel having a head at its lower end connected to the lower end of the working barrel, the exterior barrel being spaced from the Ill working barrel to form a chamber, a head closing the upper end of this chamber and having ducts leading into the upper end of the working barrel, and a sucker rod oper- .ating within the working barrel having at mediate its ends havin perforations leading into the exterior chain er.

4. In an oil well, a working barrel, a )ipe 12 section operatively connected thereto an extending below the workin barrel and having an inlet at its lower en a standing valve disposed in the working barrel, an exterior barrel having a head at its lower end con- 13! nected to the lower end of the working barrel, the exterior barrel being spaced from the workingbarrel to form achamber, a head closing the upper end of this chamber and having ducts leading into the upper end of the w0rking barrel, and a sucker rod operating within the working barrel having at its lower end -a travelingvalve and above its lower end a piston said piston having its cups reversed relative to the cups of the standing valve, theworkin barrel intermediate its ends having per orations leading into the exterior chamber. a

-5. In an oil well, an oil pipe, a head engaged with the oil pipe and having a in its lower face, a workin barrel having its upper end dis sed in sald recess,'a pipe section 0 erative y connected to the lower end of t e. worki barrel and forming a continuation thereo a head operatively oonnected to the lower end of the pipe section and supporting it, an exterior barrel 0 ratively connected to the lower end an to the u per head and constituting a settling cham r, the upper head havingducts leading from the upper end of the exterior chamber into the centralaperture of the upper head, a standin valve disposed at the lower end of the wor ing barrel, a sucker rod,;a traveling. rod carried at the lower end of the sucker rod and above the standing valve, and a piston carried upon the sucker rod above. the traveling valve and having its cups reversed relative to the standing valve, the working barrel intermediate its ends having perforations leading into the exterior chamber.

In testimony whereofwe hereunto afiix our signatures.

OSCAR M. rnovoiisn. RUSSELL 0. SUTHERLAND. 

